Improvement in cut-nail machines



W. HADDDCK.

Cut Nail-Machines.

Patented Nov. 25,1873.

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Af1 M. H1070 -l/THMA Pil/ to. A4 X lasen R/vf s Mams UNITED STATES PATEi WORCESTER HADDOCK, OF PITTSBURG, PENNSYLVANIA.

lMPR-OVEMENT IN vCUT-NAIL MACHINES.

Specication forming part of Letters Patent No. 144,845, dated November25, 1873; application filed May 24, 1873.

To all whom it may concern: Be it known that I, WORCESTER HADDooK ofPittsburg, in the county of Allegheny and State of Bennsylvania, haveinvented a new and useful Improvement in Self-Feeding Naillilaehines,(the same being an improvement upon the machine for which Letters Patentwere granted to Daniel Reed, anddated December 29, 1868 5) and l dohereby declare that the following is a full, clear, and exactdescriptionvthereof, reference being had to the accompanying drawingsand to the letters of reference marked thereon.

The objectpof'my invention is to feed the plate from which the nails arecut without the necessity of reversing it, as in the ordinarynail-machines. The nature of my invention consists in the combination ofdevices hereinafter described for automatically feeding the plate to thestraight vibrating cutter, and give the desired taper to the nail andsufficient metal to form the head upon it. My invention also consists inan improvement in die-box and in the means used for holding thegripingldies in the vibrating head of the nail-cutting machine.

To enable others to make and use my invent1on,I will proceed to describeits construction and operation.

' In the accompanying drawings which form part of my specification,Figure l is a top view or plan of my improvement in self-feedingnailmachines. Fig. 2 is a vertical section of the same. Fig. 3 is asection of the vibrator at line y of Fig. 1. Fig. 4 is a section of thesame at line y of Fig. 3. Fig. 5 is a transverse section of the die-boxat line y of Fig. 2.

' The nail-cutting machine is constructed in every respect like thatdescribed in the patent granted Daniel Reed hereinbefore mentioned,excepting the die-box, and means for securing the griping-dies, andvibrator, and plate-nipper, all of which parts I will now proceed todescribe.

The die-boXAis of the ordinary construction, excepting a recess madeinthe bottom of it, in which is placed what I term an adjustable stop,B, provided with a projection, C, which is fitted into a recess made inthe under side ofthe bedpiece C. By this arrangement of the piece andstop with relation to the die-box the bed-piece and griping-dies in thedie-box will be held in a firm and fixed position, and not liable to bemoved forward by the jarring action of the headers. The bed-piece can bemoved forward in the usual manner by simply cutting away a portion ofthe forward end of the stop B. The die-box A is provided with guards B',which are used for the purpose of regulating the movements sidewise ofthe nipper and the plate from which the nails are cut. The nipper forholding and feeding forward the plate from which the nails are cutconsists of an under jaw, e, to which is pivoted an upper jaw, f, and inan adjustable slide, h, to which is pivoted alever, j, which isconnected with the outer end of the upper jaw, f, by a link, c', so thatby moving the lever j toward the cutters it will cause the jaw f toclose down on the plate placed between it and the lower jaw, e. Thegrasp of the jaws f and e is released by drawing the lever j backwardfrom the cutters and by the upward pressure of the spring s'. Therelation of the lever j and link z' to the upper jaw, f, of theplatenipper can be changed by means of the adjustable slide h, to whichthe lever j is pivoted. The handle D of plate-nipper when arranged onthe vibrator is placed in a guide, k, as shown in Figs. 1 and 2. To theouter end of the handle D of the plate-nipper is a notched pendant, 7L',for the feeding-spring c connected to the vibrator, as shown in Fig. 2.The vibrator mis pivoted at its outer end by means of the pin u on itsunder side, and the inner end of the vibrator rests von suitablebearings on the die-box A. The vibrator fm is provided with holders rfor holding the plate from which the nails are cut down on the undercutter of the machine. The vibrator m is also provided with an opening,kf, and a pivoted and forked hook, l, the prongs of which project alittle above the groove in the vibrator for the plate-nipper and theplate from which the nails are cut, and the points of the prongs of thehook l are curved toward the cutter of the machine, so that the platewill pass over them and the nipper between them. When the nipper hasperformed the office of feeding the plate to the cutters of the machine,and is being drawn back to receive another plate, the scrap between thejaws of the nipper will catch against the projecting prongs of the hookI., which will draw it from between the jaws of the nipper, and it Willdrop down through the opening 7c and pass from the machine. On one sideof the vibrator m is an attachment-plate, n', which is held in positionby rods which Apa'ss`.t,hrough lugs on the under side of it, and byspiral springs f on the rods, which springs are placed on each side ofthe lugs. By this arrangement of the plate it and the vibra-tor Will beadjusted in their action with relation to each other and to their Workand driving-gear of the machine, so as to compensate for any undueaction in the vibrator. The vibrator is connected to the driving-gear ofthe machine through the medium of a rod, o, which is provided with ahook, t, Which is placed in the opening m ofthe plate n. By thisarrangement the vibrator can be connected and disconnected from thedrivinggear with great ease and facility. The next and last feature ofmy improvements consists in securing the two griping-dies e in thegriping-lever or vibrating head of the machine through the medium of twohooks in contradistinction to set-screws. These hooks n, which hold thegriping-dies e in the vibrating head R, are made to impinge upon thegriping-dies through. the medium of keys s, Which are driven into thehooks through openings in them, and so arrr nged that the driving-headsof the keys are most distant from the axis of the vibrating head R, andin the most convenient position for being driven into the hooks n, anadvantage that can only be appreciated by the operators of nailcuttingmachines.

Having thus described the nature, construc- 1. The die-box A, providedwith a recessfor the reception of a stop, B, provided with projections Citted to a recess in the bed-piece,

lsubstantially as herein described, and for the purpose set forth.

2. The platc-nipper consisting of the jaw e and pivotcd jaW j', incombination with the locking device consisting of the adjustable slideh, link i, and pivoted lever j, said parts constructed, arranged, andoperating with relation to each other, substantially as hereinbeforedescribed, and for the purpose set forth.

3. In combination with the vibrator m, having opening 7c and tongs forgriping the plate, the forked lever l', substantially as hereindescribed, and for the purpose set forth.

4. The connecting-rod o, furnished With hook t, in combination with theplate n', `having opening m', and held in position with relation to thevibrator m through the niediiun of rods .r and springs f, substantiallyas described, and for the purpose set forth.

5. In combination with the vibrating griping-head R of a nail-cuttingmachine, the hooks n and keys s, arranged and operatin g substantiallyas herein described, and for the purpose set forth.

WORCESTER HADDOGK.

Witnesses JAMES J. JoHNsToN, JNO. D. PATTON.

